Carton



June 2, A.- E. SIMONS CARTON Filed Oct. 27, 1939 INVENTQR ARTHUR E. 51 MONS ATTORNEY Patented June 2, 1942 UNITED. STATES "PATENT OFFICE Arthur E. Simona, Calif aaaignor to StandardOIIOo mpanyoi California, 8an

Francisco, (jalit, a I corporation Delaware Application October 27, 1939, Serial No. 301,809

40iaims. ((11.229-3'1) v This invention relates to knock-down cartons or containers made preferably from heavy'paper boardand the like and adapted to hold materialswhich areinitially hot and fluid, such as melted asphalt, and is particularlydirected to an arrangement of integral flaps to form end closures for said carton which will have a flat outer surface.

Heretofore cartons inwhich asphalt andsimilar materials are packaged for shipment have been formed with end closures which required the use of'hexagonal pads or covers which were secured to the inturnedtriangular end flaps to forms jtight closure. Itwill be appreciated that hotasphalt is very fluent and tends to escape through even small cracks or openings? The use of separate covers which telescope over the open end-of such a container has proved to be very costly and also forms a projection that makes such closures liable to be removed during the handling'of such packages'.

Ithas also been proposed to use hexagonal" ton forthe packaging i In the drawing,

cartons in whicha continuous band is integral with the side wall, this band being scored to fold inwardly and form a telescopic lock for the opposite sides. Such an arrangement is illustratedin Patent No. 2,044,1035 Theprincipai disadvan -at the ends without making an unsightly bulge and a rounded end on which the finished package tagesfof such an arrangement for the present will not stand without ,wabbling. Thus the principal advantage of a hexagonal. carton, namely.

be relativelystablej in any position,- is lost.

This "invention comprehends broadly an improve 'nent over the arrangement Just described fi'riithatthe tabs are separate so that they may be ifjoldedfinside of a plane of the end of the carton, and in addition that two of the flaps are isosceles trapezoids which are adapted to overlie the rem msfflap's ,4 ing the end closure and to ajor diameter ofthe endof the abut along hexagonal carton to form a flat closure therefor.

the flaps are pressed together with a suitable adhesive and then the whole package is inverted so that the pressure of thehot asphalt will act to seal the component parts of the closure.

that it will stack ina. minimum of space and partially closed position. j Figure 5 is an end view of acarton which may fit is an object of this invention to provide a strong and easily assembled carton which is adapted to hold a heavy and originally liquid maclosures maybe provided that will leave a flat end closure with a minimum of seams or folds which may cause leakage of an initially plastic or otherwise fluent material.

These and other oblects and advantages will beiurther apparent from the following description andirom the accompanying drawing which forms a part of this specification and illustrates a preferred embodiment and an alternative form' of this invention as applied to an hexagonal car of asphalt. t

Figure l is a fragmentary view of a paperboard blank showing the cuts and scores .which sepa-- rate respectively the end closure tabs and the a side wall panels of the carton;

e 2 is an alternative arrangement of a paper board blank similar to that shown in Figure 1. A.

Figure 3 is an end view of a carton having closure tabs such as those shown in Figure 1, thesetabs being in a'partially closed position.

Figure 4 is an end view of a carton having tabs such as shown in Figure 2,

be either that of Figure 3 or Figure 4 illustrating .the opposed trapezoidal end tabs which forn gtlfie I outer layer of the end closureL e 6 is a side eievational view of the carton of Figure 5 showingfthe flat nature of the end closures thus provided' Figure 'I is an end view of an hexagonal car'- ton constructed according to this invention in which a thin sealing strip is applied to the abutting edges of the trapezoidal outer flaps.

Referring to the drawing and particularly to Figure 1, reference numeral ll designates a blank whichmay be of paper board or any other suitable sheet material that is foldable to form a carton of this nature. Blank III is divided into sideforming panels ll, l2, l3, ll, II and i6 and preferably a glue'or staple flap i'l, these divisions beingmadebythescore lines a, b, c,'d,eandj. At the end of panels II to II inclusive is a score these tabs being in a line some the mu length of blank II which II which are separated from each other by interdesired material, in this case asphalt, and to be destroyed upon removal of the carton from its contents. Although specific embodiments have been illustrated and described, it is obvious that modifications in the position of various of the parts. for example glue flap i1, may be made without departing from the invention and all such modifications and changes that are within the scope of the appended claims are embraced mediate panels I! and i4. Tabs IO and 2| are equilateral triangles and tabs ,2! and 23 are rhombuses, these arrangements being desirable for reasons which will be pointed out below.

Referring to Figure 3, whichillu'strates the tab arrangement of Figure l in a carton of which the body has been formed and whichis in process of having an end assembled, it will be noted that triangular tabs 1! and II are'flrst'iolded inwardly at substantially right angles to the side walls. of the body. Rhombus shaped tabs-2s and it are then folded inwardly so as to cover tabs 2i. and II respectively and may be secured to those tabs by anadhesive or other suitable fastening means. Finally to complete the closure, trapezoidal tabs" and?! are folded nwardly covering all of'the preceding tabs and abutting along the major axis A 'B of the end of the carton. Adhesive or other -suitable fasteninginay' be used to secure tabs ll and'fljto those already folded inwardly. As shown in Figure 6, it will be found that this arrangement will give a flat end closure for the carton. If desired, the seam formed along the major axis A-B of the end of u the carton may be covered by means of a strip 24 which may be a'thin paper or other suitable, material. j

Obviously the opposite end of the carton may be similarly assembled after whatever material. for example melted asphalt or the like, is placed inthecarton. a 7

The alternative arrangement of tabs shown in Figure 2 is substantially similar to that of Figure 1, except that the rhombuses 20 and 23 are cut toform equilateral triangles '28 and 26 respectively. The same designation has been used for the remainder of thisfigure, The assembly of I such an arrangement is shownin Figure '4; In assembling this form of enclosure, vtriangular tabs ll, 2!, 2i and I! are turned inwardly at right angles to the side panels of the carton and are covered by trapezoidal tabs i9 and 22 in the same manner as described for theembodiment of Figures 1 and 3. Somewhat more care may be required to hold the carton in its truly hexagonal position when assembling this form of end closure. beneath by means of'an adhesive or any other suitable fastening medium. In addition, cover strip 24 may be applied to the seam formed by the abutting edges 'of tabs i! and 2 2 as shown in Figure 'l. ,i

It is'apparent. that'this' invention is particularly adapted to form flat and easily assembled end closures for cartonsof the type described, that is, those which-are intended-to be filled with any Tabs I! and 22 may be secured to those thereby,

I claim:

l. A single blank of foldable material for formv ing a hexagonal carton, comprising a body portion having-six side panels and a glue flap, for forming the six sides of .the carton, said side panels and flap being defined from one another byscorelines, and a plurality of separate infolding cover-forming tabs extending equidistantly from said panels, two of said tabs being I rhombujses, two equilateral triangles, and two isosceles trapezoids, said last named tabs being connected, respectively, to side panels separated by two intermediate panels and 'adapted'to form end-closing tabs overlying all of said cover-torming tabs.

2. A carton formed of one blank of ioldable material comprising a hexagonal body including six side panels, a separate tab extending equidistantly outwardly from each of said panels, all of said tabs being iioldable inwardly to form an end closure for said carton, two' of said tabs being opposed and equilateral triangles, the next adjacent, tabs beingrhombuses adapted to-overlie said first named tabs, and the remaining two tabs "being isosceles trapezoids opposed to overlie said second named tabs'and to abut along the major diameter of the end of said carton to form a flat closure therefor. a 3. A single'blank of foldable material for forming a hexagonal carton comprising a body por-' tion having six side panels and a flap for joining them to form a body, and a separate infolding tab extending substantially equidistantly from an end of each offsaid side panels, two of said tabs being substantially equilateral triangles, the next adjacent tabs beingsubstantially of rhomboidal configuratio'nfand the remaining two tabs being isosceles trapezoids adapted to form abutting and end-closing tabs overlying all of said previously named tabs when the latter are folded to form a closure for the end ofsaid carton. 4 g

4. A carton formed of one blank .of foldable material comprising a hexagonal body including six side panels, a separate tab extending substantially equidistantly outwardly from each of said panels, all of said tabs being foldable inwardly to form an end closure for said carton, two of said tabs being substantially equilateral triangles, the

next adjacent tabs being of a configuration that will at least partly overlie said triangular tabs when they are infolded to lie at right angles to said-side panels, and the remaining two tabs being isosceles trapezoids opposed to overlie said first and second named tabs and to abut along the major diameter of an end of said carton to form a' flat closure therefor.

' ARTHUR E SIMONS. 

